Fetch the HPKE public key only when configured to use the hosted
authenticate service. Determine whether we are using the hosted
authenticate service by comparing the resolved authenticate domain with
a hard-coded list of hosted authenticate domains.
Extract this list of hosted authenticate domains to the internal/urlutil
package in order to keep a single source of truth for this data.
* wip
* wip
* handle wildcards in override name
* remove wait for ready, add comment about sync, force initial sync complete in test
* address comments
* config: add enable_google_cloud_serverless_authentication to config protobuf
* use dependency injection for embedded envoy provider
* Revert "use dependency injection for embedded envoy provider"
This reverts commit 5c08990501.
* config: attach envoy version to Config to avoid metrics depending on envoy/files
